Sheep Veterinary Practice - Tabla de Contenido | Page 8

7.2.2
Hypocalcaemia
161
7.2.3
Dorsal Vaginal Tear with Evisceration
163
7.2.4
Vaginal Prolapse
163
7 3 Abortion and Prenatal Diseases of Lambs
164
7.3.1
Introduction
7.3.2
.
Campylobacteriosis
164
7.3.3
Listeriosis
166
7.3.4
Toxoplasmosis
167
7.3.5 Chlamydial Abortion 167 7.3.6 Coxiellosis 168 7.3.7 Salmonellosis 188 7.3.8 Leptospirosis 169 7.3.9 Brucellosis 189 7.3.10 Ovine Pestivirus 169 7.3.11 Akabane Disease 169 7.3.12 Abortion Caused by Histophilus somni 170 7.3.13 Romulosis 170
7.4 The Lambing Process and Husbandry at Lambing 170 7.4.1 Parturition 170 7.4.2 Normal Ewe and Lamb Behaviour at Birth 170 7.4.3 The Influence of Lamb Birthweighton Survival 171 7.4.4 Husbandry at Lambing 172
7.5 Perinatal Lamb Mortality 173 7.5.1 Dystocia and Birth Injury 173 7.5.2 Starvation, Mismothering and Exposure 174 7.5.3 Minor Causes of PerinatalMortalities 174
7.5.4
Post-Mortem Examination ofLambs
175
7.6
Disorders of the Ewe at Lambing
176
7.6.1
Dystocia
176
7.6.2
Uterine Prolapse
176
7.7
Nutrition during Lactation
176
7.8
Disorders of Lactating Ewes
177
7.8.1
Hypomagnesaemia
177
7.8.2
Undernutrition
178
7.8.3
Mastitis
178
7-8.4
Contagious Agalactia
179
7.9
Lamb Management at and after Marking
179
References